DBot/overdrive_that_matters
DBot/overdrive_that_matters
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split drawArc to uploadArc, more intelligent steps calculation

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This commit is contained in:
DBotThePony 2022-10-16 13:32:41 +07:00
parent b5ed902871
commit df683477d1
Signed by: DBot
GPG Key ID: DCC23B5715498507
1 changed files with 50 additions and 26 deletions
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76
src/main/kotlin/ru/dbotthepony/mc/otm/client/render/RenderHelper.kt
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@ -591,29 +591,30 @@ fun drawArc(
innerRadius: Float = 0f,
startDegree: Double = 0.0,
endDegree: Double = PI * 2.0,
steps: Int = (outerRadius / 8.0 * (endDegree - startDegree)).roundToInt().coerceAtLeast(12),
steps: Int = (outerRadius * (endDegree - startDegree) * 4.0).roundToInt().coerceAtLeast(12),
alignAtCenter: Boolean = true
) = drawArc(stack.last().pose(), x, y, outerRadius, innerRadius, startDegree, endDegree, steps, alignAtCenter)
fun drawArc(
fun uploadArc(
matrix: Matrix4f,
builder: VertexConsumer,
x: Float,
y: Float,
outerRadius: Float,
innerRadius: Float = 0f,
startDegree: Double = 0.0,
endDegree: Double = PI * 2.0,
steps: Int = (outerRadius / 8.0 * (endDegree - startDegree)).roundToInt().coerceAtLeast(12),
alignAtCenter: Boolean = true
steps: Int = (outerRadius * (endDegree - startDegree) * 4.0).roundToInt().coerceAtLeast(12),
alignAtCenter: Boolean = true,
triangleFan: Boolean
) {
require(startDegree < endDegree) { "Invalid arc degree range: $startDegree - $endDegree" }
require(steps >= 0) { "Invalid amount of arc steps: $steps" }
require(innerRadius >= 0f) { "Invalid inner radius of arc: $innerRadius" }
RenderSystem.setShader(GameRenderer::getPositionShader)
RenderSystem.enableBlend()
RenderSystem.defaultBlendFunc()
RenderSystem.depthFunc(GL_ALWAYS)
if (!triangleFan) {
require(innerRadius >= 0f) { "Invalid inner radius of arc: $innerRadius" }
}
@Suppress("name_shadowing")
var x = x
@ -632,30 +633,20 @@ fun drawArc(
y += outerRadius
}
val builder = tesselator.builder
if (triangleFan) {
val singleStep = (endDegree - startDegree) / steps
if (innerRadius == 0f) {
if (steps >= 1) {
val singleStep = (endDegree - startDegree) / steps
builder.vertex(matrix, x, y, zLevel).endVertex()
builder.begin(VertexFormat.Mode.TRIANGLE_FAN, DefaultVertexFormat.POSITION)
for (i in 0 .. steps) {
val sin = sin(startDegree + i * singleStep).toFloat()
val cos = cos(startDegree + i * singleStep).toFloat()
builder.vertex(matrix, x, y, zLevel).endVertex()
for (i in 0 .. steps) {
val sin = sin(startDegree + i * singleStep).toFloat()
val cos = cos(startDegree + i * singleStep).toFloat()
builder.vertex(matrix, x + outerRadius * sin, y + cos * outerRadius, zLevel).endVertex()
}
BufferUploader.drawWithShader(builder.end())
builder.vertex(matrix, x + outerRadius * sin, y + cos * outerRadius, zLevel).endVertex()
}
} else {
val singleStep = (endDegree - startDegree) / (steps + 1)
builder.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION)
for (i in 0 .. steps) {
val sin = sin(startDegree + i * singleStep).toFloat()
val cos = cos(startDegree + i * singleStep).toFloat()
@ -668,7 +659,40 @@ fun drawArc(
builder.vertex(matrix, x + innerRadius * sin2, y + cos2 * innerRadius, zLevel).endVertex()
builder.vertex(matrix, x + innerRadius * sin, y + cos * innerRadius, zLevel).endVertex()
}
}
}
fun drawArc(
matrix: Matrix4f,
x: Float,
y: Float,
outerRadius: Float,
innerRadius: Float = 0f,
startDegree: Double = 0.0,
endDegree: Double = PI * 2.0,
steps: Int = (outerRadius * (endDegree - startDegree) * 4.0).roundToInt().coerceAtLeast(12),
alignAtCenter: Boolean = true
) {
require(startDegree < endDegree) { "Invalid arc degree range: $startDegree - $endDegree" }
require(steps >= 0) { "Invalid amount of arc steps: $steps" }
require(innerRadius >= 0f) { "Invalid inner radius of arc: $innerRadius" }
RenderSystem.setShader(GameRenderer::getPositionShader)
RenderSystem.enableBlend()
RenderSystem.defaultBlendFunc()
RenderSystem.depthFunc(GL_ALWAYS)
val builder = tesselator.builder
if (innerRadius == 0f) {
if (steps >= 1) {
builder.begin(VertexFormat.Mode.TRIANGLE_FAN, DefaultVertexFormat.POSITION)
uploadArc(matrix, builder, x, y, outerRadius, innerRadius, startDegree, endDegree, steps, alignAtCenter, triangleFan = true)
BufferUploader.drawWithShader(builder.end())
}
} else {
builder.begin(VertexFormat.Mode.QUADS, DefaultVertexFormat.POSITION)
uploadArc(matrix, builder, x, y, outerRadius, innerRadius, startDegree, endDegree, steps, alignAtCenter, triangleFan = false)
BufferUploader.drawWithShader(builder.end())
}
}