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Force p3d_Vertex to attribute location 0 to fix disappearing geometry when an attribute is not bound

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rdb 2015-05-01 20:15:00 +02:00
parent a745184f25
commit 74f936115e
1 changed files with 11 additions and 0 deletions
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11
panda/src/glstuff/glShaderContext_src.cxx
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@ -1974,6 +1974,17 @@ glsl_compile_and_link() {
// glsl_report_shader_errors(*it);
//}
// Under core OpenGL, we have to make sure that we bind something to
// attribute 0. Make sure that this is the position array.
_glgsg->_glBindAttribLocation(_glsl_program, 0, "p3d_Vertex");
_glgsg->_glBindAttribLocation(_glsl_program, 0, "vertex");
// While we're at it, let's also map these to fixed locations. These
// attributes were historically fixed to these locations, so it might
// help a buggy driver.
_glgsg->_glBindAttribLocation(_glsl_program, 2, "p3d_Normal");
_glgsg->_glBindAttribLocation(_glsl_program, 3, "p3d_Color");
// If we requested to retrieve the shader, we should indicate that before linking.
#if !defined(NDEBUG) && !defined(OPENGLES)
if (gl_dump_compiled_shaders && _glgsg->_supports_get_program_binary) {