Annika/UwUGL
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created buffer shader and added shader logic to rectangle

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Annika
2026-07-08 16:50:17 -07:00
parent 43c893984f
commit 89afdfce9b
9 changed files with 73 additions and 50 deletions
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primatives/rectangle.cpp
+11 -5
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@@ -25,8 +25,8 @@ namespace UwU {
// Draw a rectangle
void draw (Buffer buffer, Shader shader) {
if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
if (shader.shaderType == COLOR) {
if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
for (uint16_t y = y0; y < y1; y++) {
for (uint16_t x = x0; x < x1; x++) {
buffer.drawPixel(x, y, shader.c0);
@@ -35,14 +35,13 @@ namespace UwU {
return;
} else if (shader.shaderType == HGRADIENT) {
if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
// Precompute gradient LUT
Color cols[x1 - x0];
for (uint16_t x = x0; x < x1; x++) {
cols[x - x0] = ShaderMethods::gradient(shader.u0, shader.scale, shader.c0, shader.c1, x);
}
for (uint16_t y = y0; y < y1; y++) {
for (uint16_t x = x0; x < x1; x++) {
buffer.drawPixel(x, y, cols[x - x0]);
@@ -51,7 +50,6 @@ namespace UwU {
return;
} else if (shader.shaderType == VGRADIENT) {
if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
for (uint16_t y = y0; y < y1; y++) {
Color c = ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, y);
for (uint16_t x = x0; x < x1; x++) {
@@ -59,8 +57,16 @@ namespace UwU {
}
}
return;
} else if (shader.shaderType == BUFFER) {
for (uint16_t y = y0; y < y1; y++) {
for (uint16_t x = x0; x < x1; x++) {
buffer.drawPixel(x, y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
}
}
return;
}
return;
}
};
}