O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers. Get OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 4.3, Eighth Edition now with the O’Reilly learning platform. Layout (location = 0, index = 0) out vec4 first_output layout (location = 0, index = 1) out vec4 second_output Layout Qualifiers Specifying the Index of Fragment Shader Outputs Example 4.13 shows an example of such a declaration.Įxample 4.13. To create such an output we use the index layout qualifier when declaring it in the fragment shader. It is not always necessary to bake all maps. We choose the FBX that we exported from Blender, in the resolution I used 4096 and OpenGL in Normal Map Format. These factors, GL_SRC1_COLOR and GL_SRC1_ALPHA, are produced in the fragment shader by writing to an output whose index is 1 (rather than the default 0). This tutorial explains how to work with Blender 2.90 and Substance Painter 2020 and the subject is based on a design of Guillaume Singelin. Two of the blend factors already described in this chapters are the second source blending factors and are special in that they are driven by a second output in the fragment shader.
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