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added default Additive BlendMode

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This commit is contained in:
Noel Berry 2022-02-12 23:15:04 -08:00
parent 8add71003c
commit 7477cda527
3 changed files with 14 additions and 3 deletions
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2
include/blah/drawing/batch.h
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@ -16,7 +16,7 @@ namespace Blah
Normal, Normal,
// Ignores the texture color but still uses transparency, essentially // Ignores the texture color but still uses transparency, essentially
// drawing the "shape" of the texture a solid color // drawing the "shape" of the texture as a solid color
Wash Wash
}; };

3
include/blah/graphics.h
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@ -115,9 +115,8 @@ namespace Blah
{ {
// Normal, pre-multiplied, Blend Mode // Normal, pre-multiplied, Blend Mode
static const BlendMode Normal; static const BlendMode Normal;
// Subtractive Blend Mode
static const BlendMode Subtract; static const BlendMode Subtract;
static const BlendMode Additive;
BlendOp color_op; BlendOp color_op;
BlendFactor color_src; BlendFactor color_src;

12
src/graphics.cpp
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@ -25,6 +25,18 @@ const BlendMode BlendMode::Subtract = BlendMode(
0xffffffff 0xffffffff
); );
const BlendMode BlendMode::Additive = BlendMode(
BlendOp::Add,
BlendFactor::SrcAlpha,
BlendFactor::One,
BlendOp::Add,
BlendFactor::SrcAlpha,
BlendFactor::One,
BlendMask::RGBA,
0xffffffff
);
VertexFormat::VertexFormat(const StackVector<VertexAttribute, 16>& attr, int str) VertexFormat::VertexFormat(const StackVector<VertexAttribute, 16>& attr, int str)
{ {
attributes = attr; attributes = attr;