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Refactoring ol.render.webgl.LineStringReplay

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This commit is contained in:
GaborFarkas
2016-06-15 11:42:08 +02:00
parent c13d09ba23
commit 0f8e1a7e40
3 changed files with 111 additions and 186 deletions
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src/ol/render/webgl/webgllinestringdefault.glsl
+31 -37
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@@ -13,53 +13,50 @@ attribute vec2 a_lastPos;
attribute vec2 a_position;
attribute vec2 a_nextPos;
attribute float a_direction;
attribute float a_instruction;
uniform mat4 u_projectionMatrix;
uniform mat4 u_offsetScaleMatrix;
uniform float u_lineWidth;
uniform float u_miterLimit;
uniform float u_round;
void main(void) {
v_halfWidth = u_lineWidth / 2.0;
vec2 offset;
v_round = 0.0;
float direction = a_direction / abs(a_direction);
vec4 projPos = u_projectionMatrix * vec4(a_position, 0., 1.);
if (a_instruction == 0. || a_instruction == 4.) {
if (mod(a_direction, 3.0) == 0.0 || mod(a_direction, 17.0) == 0.0) {
vec2 dirVect = a_nextPos - a_position;
vec2 normal = normalize(vec2(-dirVect.y, dirVect.x));
offset = v_halfWidth * normal * a_direction;
if ((a_instruction == 4. && (u_round == 7. || u_round == 9.)) ||
(a_instruction == 0. && (u_round == 8. || u_round == 9.))) {
offset = v_halfWidth * normal * direction;
if (mod(a_direction, 2.0) == 0.0) {
v_roundVertex = projPos + u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
}
} else if (a_instruction == 1. || a_instruction == 3.) {
} else if (mod(a_direction, 5.0) == 0.0 || mod(a_direction, 13.0) == 0.0) {
vec2 dirVect = a_lastPos - a_position;
vec2 normal = normalize(vec2(dirVect.y, -dirVect.x));
offset = v_halfWidth * normal * a_direction;
if ((a_instruction == 3. && (u_round == 7. || u_round == 9.)) ||
(a_instruction == 1. && (u_round == 8. || u_round == 9.))) {
offset = v_halfWidth * normal * direction;
if (mod(a_direction, 2.0) == 0.0) {
v_roundVertex = projPos + u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
}
} else if (a_instruction == 5. || a_instruction == 6.) {
} else if (mod(a_direction, 19.0) == 0.0 || mod(a_direction, 23.0) == 0.0) {
vec2 dirVect = a_nextPos - a_position;
vec2 tmpNormal = normalize(vec2(-dirVect.y, dirVect.x));
vec2 tangent = normalize(normalize(a_nextPos - a_position) + normalize(a_position - a_lastPos));
vec2 normal = vec2(tangent.y, -tangent.x);
float miterLength = v_halfWidth / dot(normal, tmpNormal);
if (a_instruction == 6.) {
if (u_round == 7. || u_round == 9.) {
offset = normal * a_direction * miterLength;
if (mod(a_direction, 23.0) == 0.0) {
if (mod(a_direction, 2.0) == 0.0) {
offset = normal * direction * miterLength;
v_round = 1.0;
v_roundVertex = projPos + u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
} else if (miterLength > u_miterLimit) {
offset = tmpNormal * a_direction * v_halfWidth;
offset = tmpNormal * direction * v_halfWidth;
} else {
offset = normal * a_direction * miterLength;
offset = normal * direction * miterLength;
}
} else if (a_instruction == 5.) {
offset = normal * a_direction * miterLength;
} else {
offset = normal * direction * miterLength;
vec4 defaultOffset = u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
vec4 firstProjPos = u_projectionMatrix * vec4(a_lastPos, 0., 1.) + defaultOffset;
vec4 secondProjPos = projPos + defaultOffset;
@@ -76,30 +73,27 @@ void main(void) {
} else {
projPos = thirdProjPos - defaultOffset;
}
offset = tmpNormal * a_direction * v_halfWidth;
offset = tmpNormal * direction * v_halfWidth;
}
}
} else if (a_instruction == 2.) {
vec2 dirVect = a_position - a_nextPos;
vec2 firstNormal = normalize(dirVect);
vec2 secondNormal = vec2(firstNormal.y * a_direction, -firstNormal.x * a_direction);
vec2 hypotenuse = normalize(firstNormal - secondNormal);
vec2 normal = vec2(hypotenuse.y * a_direction, -hypotenuse.x * a_direction);
float length = sqrt(v_halfWidth * v_halfWidth * 2.0);
offset = normal * length;
if (u_round == 8. || u_round == 9.) {
v_round = 1.0;
v_roundVertex = projPos + u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
} else if (mod(a_direction, 7.0) == 0.0 || mod(a_direction, 11.0) == 0.0) {
vec2 normal;
if (mod(a_direction, 7.0) == 0.0) {
vec2 dirVect = a_position - a_nextPos;
vec2 firstNormal = normalize(dirVect);
vec2 secondNormal = vec2(firstNormal.y * direction, -firstNormal.x * direction);
vec2 hypotenuse = normalize(firstNormal - secondNormal);
normal = vec2(hypotenuse.y * direction, -hypotenuse.x * direction);
} else {
vec2 dirVect = a_position - a_lastPos;
vec2 firstNormal = normalize(dirVect);
vec2 secondNormal = vec2(-firstNormal.y * direction, firstNormal.x * direction);
vec2 hypotenuse = normalize(firstNormal - secondNormal);
normal = vec2(-hypotenuse.y * direction, hypotenuse.x * direction);
}
} else if (a_instruction == 10.) {
vec2 dirVect = a_position - a_lastPos;
vec2 firstNormal = normalize(dirVect);
vec2 secondNormal = vec2(-firstNormal.y * a_direction, firstNormal.x * a_direction);
vec2 hypotenuse = normalize(firstNormal - secondNormal);
vec2 normal = vec2(-hypotenuse.y * a_direction, hypotenuse.x * a_direction);
float length = sqrt(v_halfWidth * v_halfWidth * 2.0);
offset = normal * length;
if (u_round == 8. || u_round == 9.) {
if (mod(a_direction, 2.0) == 0.0) {
v_round = 1.0;
v_roundVertex = projPos + u_offsetScaleMatrix * vec4(0., 0., 0., 0.);
}