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blender-archive/source/blender/gpu/shaders/gpu_shader_basic_vert.glsl

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OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#if defined(USE_SOLID_LIGHTING) || defined(USE_SCENE_LIGHTING)
Flat shading for basic shader The purpose of the patch is to replace deprecated glShadeModel. To decrease glShadeModel calls I've set GL_SMOOTH by default Reviewers: merwin, brecht Reviewed By: brecht Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1958
2016-05-16 11:13:21 +03:00
#if defined(USE_FLAT_NORMAL)
varying vec3 eyespace_vert_pos;
#else
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
varying vec3 varying_normal;
Flat shading for basic shader The purpose of the patch is to replace deprecated glShadeModel. To decrease glShadeModel calls I've set GL_SMOOTH by default Reviewers: merwin, brecht Reviewed By: brecht Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1958
2016-05-16 11:13:21 +03:00
#endif
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#ifndef USE_SOLID_LIGHTING
varying vec3 varying_position;
#endif
#endif
#ifdef USE_COLOR
Wide lines + line stipple deprecated API replacement The patch contains an implementation of the wide lines and the line stipple that is necessary for OpenGL upgrade. For the implementation I have chosen the geometry shader because it required minimum changes for the wrapper calls and such implementation is the best for the "basic shader" architecture. There are few shortcomings that can be corrected in future. They all are related to the fact that the lines in one strip are not connected with each other. So the stipple pattern is not continuous on the common vertex of two lines. There is also no continuity of form (each line is an independent rectangular). But the advantage is that even outdated glBegin, glVertex work! Though with the above restrictions. Continuity of form and stipple can be implemented with additional attributes, and it will require more changes in calls. At the moment, the patch replaces calls for some "gestures". It works satisfactorily for "cross" or "rectangular" and not so good for "lasso" and "circle" due to the above-mentioned shortcomings. Don't forget to set USE_GLSL to true for testing. Alexander Romanov (Blend4Web Team) Reviewers: merwin, brecht Reviewed By: merwin, brecht Subscribers: aligorith, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1880
2016-04-08 10:58:40 +03:00
#ifdef DRAW_LINE
varying vec4 varying_vertex_color_line;
#else
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
varying vec4 varying_vertex_color;
#endif
Wide lines + line stipple deprecated API replacement The patch contains an implementation of the wide lines and the line stipple that is necessary for OpenGL upgrade. For the implementation I have chosen the geometry shader because it required minimum changes for the wrapper calls and such implementation is the best for the "basic shader" architecture. There are few shortcomings that can be corrected in future. They all are related to the fact that the lines in one strip are not connected with each other. So the stipple pattern is not continuous on the common vertex of two lines. There is also no continuity of form (each line is an independent rectangular). But the advantage is that even outdated glBegin, glVertex work! Though with the above restrictions. Continuity of form and stipple can be implemented with additional attributes, and it will require more changes in calls. At the moment, the patch replaces calls for some "gestures". It works satisfactorily for "cross" or "rectangular" and not so good for "lasso" and "circle" due to the above-mentioned shortcomings. Don't forget to set USE_GLSL to true for testing. Alexander Romanov (Blend4Web Team) Reviewers: merwin, brecht Reviewed By: merwin, brecht Subscribers: aligorith, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1880
2016-04-08 10:58:40 +03:00
#endif
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#ifdef USE_TEXTURE
varying vec2 varying_texture_coord;
#endif
Another attempt for T40981, clipping border does not work with GLSL on ATIs. This is actually a test to see if this can be enabled on ATI cards. According to various sources, newer ATI cards supporting GLSL 3.0 support gl_ClippingDistance in shaders, which is the forward compatible way to do custom clipping. This fix will bind 6 additional varying variables on ATIs, which may lead to some shaders not compiling due to limiting out of those variables, or to performance degradation. Also I do not have an ATI handy to test. Having those in mind, this commit may well be reverted later. Clipping planes are usually 4 (6 is for cube clipping), but making shaders depend on viewport state is really bad, and would lead to recompilation, so I took the worst case here to avoid that. Hopefully driver does some optimization there.
2014-07-11 19:17:29 +03:00
#ifdef CLIP_WORKAROUND
varying float gl_ClipDistance[6];
#endif
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
void main()
{
vec4 co = gl_ModelViewMatrix * gl_Vertex;
#if defined(USE_SOLID_LIGHTING) || defined(USE_SCENE_LIGHTING)
Flat shading for basic shader The purpose of the patch is to replace deprecated glShadeModel. To decrease glShadeModel calls I've set GL_SMOOTH by default Reviewers: merwin, brecht Reviewed By: brecht Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1958
2016-05-16 11:13:21 +03:00
#if !defined(USE_FLAT_NORMAL)
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
varying_normal = normalize(gl_NormalMatrix * gl_Normal);
Flat shading for basic shader The purpose of the patch is to replace deprecated glShadeModel. To decrease glShadeModel calls I've set GL_SMOOTH by default Reviewers: merwin, brecht Reviewed By: brecht Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1958
2016-05-16 11:13:21 +03:00
#endif
#if defined(USE_FLAT_NORMAL)
/* transform vertex into eyespace */
eyespace_vert_pos = (gl_ModelViewMatrix * gl_Vertex).xyz;
#endif
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#ifndef USE_SOLID_LIGHTING
varying_position = co.xyz;
#endif
#endif
gl_Position = gl_ProjectionMatrix * co;
Another attempt for T40981, clipping border does not work with GLSL on ATIs. This is actually a test to see if this can be enabled on ATI cards. According to various sources, newer ATI cards supporting GLSL 3.0 support gl_ClippingDistance in shaders, which is the forward compatible way to do custom clipping. This fix will bind 6 additional varying variables on ATIs, which may lead to some shaders not compiling due to limiting out of those variables, or to performance degradation. Also I do not have an ATI handy to test. Having those in mind, this commit may well be reverted later. Clipping planes are usually 4 (6 is for cube clipping), but making shaders depend on viewport state is really bad, and would lead to recompilation, so I took the worst case here to avoid that. Hopefully driver does some optimization there.
2014-07-11 19:17:29 +03:00
#ifdef CLIP_WORKAROUND
int i;
Code cleanup, stick closer to a blender code style in GLSL shader
2016-05-23 10:31:36 +02:00
for (i = 0; i < 6; i++)
Another attempt for T40981, clipping border does not work with GLSL on ATIs. This is actually a test to see if this can be enabled on ATI cards. According to various sources, newer ATI cards supporting GLSL 3.0 support gl_ClippingDistance in shaders, which is the forward compatible way to do custom clipping. This fix will bind 6 additional varying variables on ATIs, which may lead to some shaders not compiling due to limiting out of those variables, or to performance degradation. Also I do not have an ATI handy to test. Having those in mind, this commit may well be reverted later. Clipping planes are usually 4 (6 is for cube clipping), but making shaders depend on viewport state is really bad, and would lead to recompilation, so I took the worst case here to avoid that. Hopefully driver does some optimization there.
2014-07-11 19:17:29 +03:00
gl_ClipDistance[i] = dot(co, gl_ClipPlane[i]);
Disable clipping on ATI cards not supporting the clipping workaround to avoid software fallback.
2014-08-27 11:23:10 +02:00
#elif !defined(GPU_ATI)
Fix #34492: clipping border not working with GLSL/matcap and Nouveau drivers.
2013-03-13 18:00:13 +00:00
// Setting gl_ClipVertex is necessary to get glClipPlane working on NVIDIA
// graphic cards, while on ATI it can cause a software fallback.
Another attempt for T40981, clipping border does not work with GLSL on ATIs. This is actually a test to see if this can be enabled on ATI cards. According to various sources, newer ATI cards supporting GLSL 3.0 support gl_ClippingDistance in shaders, which is the forward compatible way to do custom clipping. This fix will bind 6 additional varying variables on ATIs, which may lead to some shaders not compiling due to limiting out of those variables, or to performance degradation. Also I do not have an ATI handy to test. Having those in mind, this commit may well be reverted later. Clipping planes are usually 4 (6 is for cube clipping), but making shaders depend on viewport state is really bad, and would lead to recompilation, so I took the worst case here to avoid that. Hopefully driver does some optimization there.
2014-07-11 19:17:29 +03:00
gl_ClipVertex = co;
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#endif
#ifdef USE_COLOR
Wide lines + line stipple deprecated API replacement The patch contains an implementation of the wide lines and the line stipple that is necessary for OpenGL upgrade. For the implementation I have chosen the geometry shader because it required minimum changes for the wrapper calls and such implementation is the best for the "basic shader" architecture. There are few shortcomings that can be corrected in future. They all are related to the fact that the lines in one strip are not connected with each other. So the stipple pattern is not continuous on the common vertex of two lines. There is also no continuity of form (each line is an independent rectangular). But the advantage is that even outdated glBegin, glVertex work! Though with the above restrictions. Continuity of form and stipple can be implemented with additional attributes, and it will require more changes in calls. At the moment, the patch replaces calls for some "gestures". It works satisfactorily for "cross" or "rectangular" and not so good for "lasso" and "circle" due to the above-mentioned shortcomings. Don't forget to set USE_GLSL to true for testing. Alexander Romanov (Blend4Web Team) Reviewers: merwin, brecht Reviewed By: merwin, brecht Subscribers: aligorith, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1880
2016-04-08 10:58:40 +03:00
#ifdef DRAW_LINE
varying_vertex_color_line = gl_Color;
#else
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
varying_vertex_color = gl_Color;
#endif
Wide lines + line stipple deprecated API replacement The patch contains an implementation of the wide lines and the line stipple that is necessary for OpenGL upgrade. For the implementation I have chosen the geometry shader because it required minimum changes for the wrapper calls and such implementation is the best for the "basic shader" architecture. There are few shortcomings that can be corrected in future. They all are related to the fact that the lines in one strip are not connected with each other. So the stipple pattern is not continuous on the common vertex of two lines. There is also no continuity of form (each line is an independent rectangular). But the advantage is that even outdated glBegin, glVertex work! Though with the above restrictions. Continuity of form and stipple can be implemented with additional attributes, and it will require more changes in calls. At the moment, the patch replaces calls for some "gestures". It works satisfactorily for "cross" or "rectangular" and not so good for "lasso" and "circle" due to the above-mentioned shortcomings. Don't forget to set USE_GLSL to true for testing. Alexander Romanov (Blend4Web Team) Reviewers: merwin, brecht Reviewed By: merwin, brecht Subscribers: aligorith, Evgeny_Rodygin, AlexKowel, yurikovelenov Differential Revision: https://developer.blender.org/D1880
2016-04-08 10:58:40 +03:00
#endif
OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The code is still unused, but the intention is to use this to solve the double sided lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0 eventually. The code works and matches the fixed function lighting pretty much exactly, but still needs optimizations. The actual integration in object draw will be committed later when more fixing & testing, there's lots of different combinations and unclear OpenGL state here.
2013-02-26 00:49:42 +00:00
#ifdef USE_TEXTURE
varying_texture_coord = (gl_TextureMatrix[0] * gl_MultiTexCoord0).st;
#endif
}
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