// util function
void VR_OVR_InitShader(r_ovr_shader_t *shader, r_shaderobject_t *object)
{
GLint texloc;
if (!object->program)
R_CompileShaderFromFiles(object);
shader->shader = object;
glUseProgram(shader->shader->program);
shader->uniform.EyeToSourceUVOffset = glGetUniformLocation(shader->shader->program,"EyeToSourceUVOffset");
shader->uniform.EyeToSourceUVScale = glGetUniformLocation(shader->shader->program,"EyeToSourceUVScale");
shader->uniform.EyeRotationStart = glGetUniformLocation(shader->shader->program,"EyeRotationStart");
shader->uniform.EyeRotationEnd = glGetUniformLocation(shader->shader->program,"EyeRotationEnd");
shader->uniform.OverdriveScales = glGetUniformLocation(shader->shader->program,"OverdriveScales");
shader->uniform.VignetteFade = glGetUniformLocation(shader->shader->program,"VignetteFade");
shader->uniform.InverseResolution = glGetUniformLocation(shader->shader->program,"InverseResolution");
shader->uniform.Desaturate = glGetUniformLocation(shader->shader->program,"Desaturate");
texloc = glGetUniformLocation(shader->shader->program,"currentFrame");
glUniform1i(texloc,0);
shader->uniform.currentFrame = texloc;
texloc = glGetUniformLocation(shader->shader->program,"lastFrame");
glUniform1i(texloc,1);
shader->uniform.lastFrame = texloc;
glUseProgram(0);
}
// util function
void R_VR_InitDistortionShader(vr_distort_shader_t *shader, r_shaderobject_t *object)
{
if (!object->program)
R_CompileShaderFromFiles(object);
shader->shader = object;
glUseProgram(shader->shader->program);
shader->uniform.texture = glGetUniformLocation(shader->shader->program, "tex");
shader->uniform.distortion = glGetUniformLocation(shader->shader->program, "dist");
shader->uniform.texture_size = glGetUniformLocation(shader->shader->program, "textureSize");
glUseProgram(0);
}